Improvement in sash-balances



w. w. s. ORBETON.

Improvement in Sash-Balances.

Tlf fvdf A ma Alfaro-Ll r//oc/MFH/c' ea. M K (assale/w3 Pn @rss s) UNITED STATES Partnr iGrFIcE.

WILLIAM S. ORBETON, OF BRADFORD, MASSACHUSETTS, ASSIGNOR TO HIMSELE` AND FRANK Gr. PHILLIPS, OF SAME PLACE.

IMPROVEMENT `IN SASH-BALANCES.

Specification forming part of Letters Patent No. 131,773, dated October 1, 1872.

To all whom 'it mag/concern: u

Be it known that I, WILLIAM W. S. ORBE- TON, of Bradford, in the county of Essex and State of Massachusetts, have invented a new and useful Improvement in Windows provided with Balanced Sashs and do hereby declare the same to be fully described in the following specification and represented in the accompanying drawing, in Which- Figure l denotes a front elevation of a window as provided with my improvement; and Fig. 2, a vertical section taken -on line x .c of `Fig. l. f j

My invention relates to that class of windows whose sashes are connected by means of cords running over pulleys, whereby one sash is made to balance the other, and thus be maintained in any desired position without any extraneous aid; and my invention consists in combining with the sashes and their cords fixed and positive adjusting devices, as hereinafter described, whereby the cords may always be preserved under a proper degree of tension, and thereby maintain the sashes in their normal relative positions.'

` In the said drawing, A denotes the frame of the window, andB B the upper and lower sashes thereof. C is the device by which the sashes are locked. ozy a are two cords, whose upper endsare connected to opposite sides of the upper sash B in the ordinary manner. The said cords pass up and over pulleys b b, (only one of which'is sho`wn,) disposed in the opposite upper corners ofthe window-casing,

the lower ends of the cords being carried downward, and respectively attached to adjustable sliders or catch-bars e c, which slide within rack-plates d d, (one only of such sliders and plates being shown, as each is a duplicate 4of the other,) which are respectively fixed in sockets made in the external vertical faces of into a female screw made in the upper end of the sliders or catch-bar, which, acting as auxiliary to the catch-bar, enables the most perfect tension of thecords to be obtained. The

said rack-plate is formed with .a series of tothe slider or the swivel affixed thereto, and

the slider drawn down and fastened in the desired holes in the rack-plate. Should a nicer adjustment be desirable, by either raising or lowering the swivel-screw the most perfect adaptation may be secured. By my construction and arrangement of parts any desired degree of ventilation of a roommay be effected.

Should it bel desirable to have the window open at the top while it remains closed at the bottoni, we have simply to move the slider or catch-bar backward into the `desired notches,

andthe upper sash willV be lowered to give the desired opening.A

I am aware that rubber springs have been applied to the ends of the cordsto act as compensatory attachments.' `Such I do not claim, my invention consisting in the employment of positive adjusting devices so applied as to enable the window to be maintained open both at top and bottom, or open only at the top, as

may be desirable.

Having described my invention, what I claim is- Thecombination, with the cords, the pulleys, and' sashes, of a compound adjusting mechanism, as described, the same consisting of the rack-plates d d, catch-bar c, and the screw e,

constructed andoperating together in manner and for the purpose stated.

, W. W. S. ORBETON.

Witnesses:

F. P. HALE, F. C. HALE. 

